Question

Помогите пожалуйста!!! Очень нужно :с

Answer 1

1) arctg1 = π/4
2) arctg(-√3/3) = -π/6
3) 2arctg(-√3) +3arctg1 = 2*(-π/3) +3*π/4 = -2π/3 +3π/4 = π/12
4)1/2*arctg(-1) +arcSin1 + arcCos1 = 1/2*(-π/4) +π/2 +0 = -π/8 + π/2 = 3π/8